(2) The content explicitly abandoned by Company A through modification or opinion statement in the process of patent application cannot be included in its protection scope again (estoppel principle).
(3) Company B did not infringe the patent right of Company A, because the necessary technical features contained in the products of Company B did not cover the necessary technical features contained in the patented technology of Company A;
(4) If the necessary technical features of E in Company C's products are equivalent to those of D in Company A's patented technology, Company C infringes the patent right of Company A;
If the necessary technical features of E in Company C's products are different from those of D in Company A's patented technology, Company C will not infringe the patent rights of Company A;
(5) Company D infringes the patent right of Company A, because the technical features contained in the products of Company D cover the necessary technical features contained in the patented technology of Company A (whether F is the necessary technical feature or not, including subordinate patent issues);
(6) Company E did not infringe the patent right of Company A, because the necessary technical features contained in the products of Company E did not cover the necessary technical features contained in the patented technology of Company A;
(7) Our company has infringed the patent right of Company A, because the necessary technical features contained in our products cover the necessary technical features contained in the patented technology of Company A, and Company A enjoys the product patent right, which belongs to the patent protection scope of Company A no matter how the products are manufactured.